Rockable upholstered vehicle seat



Aug. 5, 1952 F. x. SEITZ ROCKABLE UPI-IOLSTERED VEHICLE SEAT Filed April6, 1945 IN VENTOR ATTORNEY- Patented Aug. 5, 1952 fmnzlxaverfs amailman,Switzerland 'This invention relates to a rockable-uphol 1 stered' seatfor vehicles, particularly for motor I busses.

The seats that up to thepresent time have been used on? motor busseshave the drawback that the passengerbecomes tired during a long drive.This-is'due-tothe fact that the angular position of the back of the seatcannotbechanged at will and the bodyof the passenger is subjected tcontinuous vibrations, according to the nature of thejroad, There isalso the condition wherein the shocksof the motor bus" are absorbed bythe seat' rest element alone while the backrest remains stationary andthe relative movements of *the'seat rest with respect thereto producetiring friction" on the back of the passenger.

It is one object of the present invention to obviate'theabove stateddrawbacks by providing arockable upholstered seat for motor busses,which seat can be latched-many one of several selected "positions. r A YIt is another object of the present invention toprovide' a-n upholsteredseat and. back which areinterconnectedso that'th'e back rest moves withthe seat rest in absorbing the shocks from the motor bus. t

Still further objects, advantages and improvements will'become apparentfrom the-following specification, taken in connection with theaccompanying drawings in which:

Figure 1 is a side elevation view of a motor vehicle seat according tothe present invention with certain parts being shown in section toillustrate the yieldable mounting for the back rest;

Figure 2 is a rear elevation view showing the mounting for the headrest; and.

Figure 3 is a detail view on the section line 33 of Figure 1 showing adetail-of the mounting means of the back rest on the back of the seat.

Referring now to the drawings in detail, and

to Figure 1 in particular, the rockable uphol- I stered seat accordingto the present invention is here shown as mounted on an invertedsubstantially V-shaped bottom frame I0 which is secured to a plate I ladapted to be in turn secured to the floor of the motor bus in anysuitable manner (not shown). A substantially L-shaped frame 15 oftubular construction extends for the width of the seat and has a bottom[6 on which there are secured bearing sleeves M which receive a rod l3mounted on the bottom frame [0. the seat frame a foot rest is providedcomprised At the forward end of the bottom 16 of i i,sppiicatioifinfir'iic, 1945,'SerialNo.5S6,'9 16 InSwitzerlandSeptember'19," '1944 by'a platform 20 suspended by bars' lslfrom a barl8 extending transversely of the seat frame. A reeenforcing brace 2| isprovided between the bars l9 and the vbearingsleeves l4.

Suitable meansare provided for adjusting'the bottom andback oftheseatinto one ofseveral desired angular positions. An arcuate bar22extendsdownwardly from the bottom IGLofth'e seat and transversely of therear leg of'the' bottom frame In. and has longitudinally spaced holes23.-23 therein. This arcuate bar iSzSlid:

ably mounted in .a.sleeve.24 which latter is fixed on theframe'nlt; Aplate I2 is mounted on'the bottom frame. 10 and on this .platea lever 25is pivotally mountedby a bolt 26' The lever 25 extends forwardly E andterminates adjacent: the bars l9 which support the platform 20. At itsinner end the lever z5ycarries an arm 26' having a pin Z'l-thereon. Thepin'Zl passesgthrougha hole (not shown) in the sleeve and may-beinserted by oscillating'the lever 25 into any one ofthe'spaced holes23--23 in the-arcuate'bar 22 to thereby secure the seat frame I5.in anyone of several selected angular positions.

On the bottom l6 of the chair frame there is placed a seat cushion 28which in known manner is a totally enclosed structure having top.bottom,

ends and sides and being suitably upholstered at least on the top, endsand sides. Compression springs 29 are mounted at spaced locations withinthe seat cushion and between the top and the bottom. The particular typeof seat cushion here illustrated has an overhanging forward section 30which is downwardly and inwardly mounted on the tubular members IT. Theback rest is likewise a totally enclosed structure having top, bottom,ends and sides and being suitably upholstered at least on the top, endsand sides. Compression springs 36 are mounted at spaced locations withinsaid back rest and between the top and bottom.

The back rest 3! is slideably secured to the tubular member I! by lugswhich have flanges 32 secured to the rear walls of the back rest byscrews 33. These lugs have central web sections 34' which are slideablyreceived in longitudinally extending slots 31 in the tubular member l1and cylindrical ends 35 which are guided within the tubular member ll. Apin 38 is diametrically positioned adjacent the upper end of eachtubular member I! and a spring 39 is new ore- 1 5:

secured to the pin and connected to the cylindrical end 35 of the lowerlug to resiliently mount 7 the back rest 31 on the tubular members l1.

ovement during shocks imparted to the seat rom the motor bus. s V

A head rest is secured to a back plate member 42 of the back rest 3|.This'head rest is com Thus the pad 40 interconnects the back 3 elementand the spring cushioned seat along the prised by a suitably upholsteredpad 43 mounted on a back plate 44. the rear face of the back plate 44and a curved bar 46 is 'angularly adjustably secured to this bracket bya bolt 41 and wing nut 48. Thebar 46, extends downwardly along avertical rib, of a bracket 49 on the backmember 42 and is ad.- justablyclamped to thisrib ,by a spring blade 5| operated by a hand lever 50.

1 Having now fullydescribed my invention,v

what I claim as new and useful and desire to secure by Letters Patent ofthe United States is:

.1. A rockable upholsteredvehicle seat, comprising a stationary seatsupporting. frame, an upper seatframerockably mounted on. saidstationary supporting frame, av spring cushioned seat element mounted onsaid upper frame and adapted to yield to vertical shocks, a'cushionedback element spring suspended from said upper frame for up and downsliding movementya flexible pad connecting said seat and'back elementstogether, said flexible pad adapting both to'vertical shocks in astraight linegand means for locking said rockable upper frameinQdifierent angular positions without occupant leaving the seat. 7 r

2; A rockable upholstered vehicleseat comprising a stationary seatsupporting'frame, an upper seat frameincluding a back-comprised ofparallel upwardly extending tubes rockably A bracket 45 is mounted onsaid seat and back elements to yield conjointly ably-secured to the backelement for com 4 mounted on said stationary seat supporting frame, aspring cushioned seat mounted on said upper seat frame and providingvertical yielding movement of the seating surface, an upholstered backelement, tubular fittings slidably mounted in the said parallel upwardlyextending tubes and secured to the back element for mounting same forvertical slidable movement,

=c oil springs positioned'within said parallel upwardly'extending-tubesand suspending the tubular fittings, a flexible pad secured to the backsides thereof and inter-connecting same for upr ward'and'downwardmovement of the seat in correspondence with vertical movement of backelement, an upholstered head rest adj vertical movement therewith, andlever me ans pivo'tallyimounted on the seat supporting frame andoperable by the occupant while seated fior latching the upper seat frameand the sprifis'i cushioned seat thereon in any one of a plurality ofselected positions.

FRANZ SEITZ.

v REFERENCES CITED. The following references are of record in the fileof thispatent: w

UNITED STATES PATENTS Number v k Name Date 280,356 .Curtiss Jul y 3,1883 516,110 Pynchon Mar.;6, 1894 703,227 Blackard une 24, 19021,132,387 Robbins Mar. 16,, 1915 1,3 9,047 0 Parker, Feb. 22, 19211,696,126 Salmon 1 1 Dec. 1c, 1928 1,722,543 Selje ;Ju 1y 3p, 19291,770,321 Mougeotte July;-8, 1930 1,987,014 Lampila et al. Jan, 8,;19352,009,024 Salmons July 23,;1935 2,127,398 I Freeman Aug; 16, 1938.2;l52,024 Brosset -Mar.-28, 1939 2 21 n r Oct-.12 i94 FOREIGN PATENTSNumber Country 'Date

